Car-jack



UNITED STATES ROBERT n. Bm'rrou, for maroni-UM, PENNSYLVANIA.

CAR-JAGK.

`'Speeicaticn of Letters Patenti. Patented lllitl. 22, 1921.

Application ledIJuly 12, 1920. Serial No. 395,567.

llo all whom t may concer/11,:

Be it `known that Il, ROBERT B. BnrTToN, a citizen of the United States, residing at Emporium, in the county of Cameron, State of Pennsylvania, have invented certain new and useful Improvements in Car-Jacks5 and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in jacks and particularly to car jacks. j

Gne object of the invention is to provide a novel and improved jack by means of which the weight of a car can be raised from the axles so as to readilypermit the opening of the journal boxes and the removal of the brasses for renewing and repairs.

Another object is to provide a novel and improved device of this character by means of which the removal and replacing of brasses can be accomplished at any point on a railway, without the necessity of taking the car to a round house or repair shop.

A further object is to provide a novel and improved device of this character which is readily adaptable for use in connection with railways whether the rails thereof are of one weight or another, the variation in height, due to difference in weight, being compensated for by the adjustable feature of the leg of the jack.

Other objects and advantages `will be apparent from the following description when taken in connection with the accompanying drawing.

In the drawing:

Figure 1 is a side elevation of the jack applied to the truck frame of a railway car, and with the truck frame elevated by the j ack, the dotted lines indicating the position of the jack before the car has been moved to the position in whirthe jack appears in full lines.

Fig. 2 is an edge elevation of the jack with the truck in section to show the clamps.

Fig. 3 is a perspective view of the jack removed from the car.

When it becomes necessary to remove the brasses from the journal boxes of railway cars, the usual practice is to take the cars to the shop,jacl`r up the car, and then remove the brasses, for the purpose` of replacing or repairing them.` This takesa large amount of time, and puts the cars out of use forI a time. Also, theneed for `the change of brasses may occur at a point a considerable distance from a repair shop. It is in this latter instance that the present invention is especially useful. The car can be readily jacked up, the brasses removed, and re paired, or replaced by new ones, and the car permitted to continue its travel without the loss of but a short time.

Referring particularly to the accompanying drawing, 10 represents the head of the jack which is in the form of an elongated flat metal or other member, having on the intermediate portion of its lower face a pair of parallel apertured lugs 11. Between these lugs is disposed the upper end of the leg 12 of the jack, a pivot pin or bolt 13 being engaged through the lugs and the upper end of the leg, whereby the leg is mounted for pivotal movement. On each end of the member 10 are mounted the angular Uwshaped members 14, the outer ends of the legs of which are threaded for the reception thereon of the nuts 15. An elongated member 16, having openings in its opposite ends,

is engaged on the legs of each U-shaped member 14, and extends therebetween, the nuts 15 being engaged on said legs after the member is in position.

In the operation of the device, the nuts 15 and the plates 16 are removed from the legs of the members 14, the said members 1li engaged in straddling relation to the lower longitudinal bar 17, of the car truck frame 18, and from therebeneath. The plates 16 and nuts are then applied to the legs of the members 111, and the nuts turned down to firmly clamp the device to the truck frame bar. The outer or lower end of the leg 12 is then engaged on the upper face of the adjacent end of a tie 19. w The car is then moved forward or backward, as the case may require, with the result that the truck frame will be elevated from the axles, thereby permitting the brasses to be easily removed through the opening in the journal box. The brasses having been replaced by new ones, or repaired, the car is moved again so as to lower the truck frame and bring the brasses to bear' on the axle ends. The nuts are removed the jack taken away. Thus a considerable amount of time and labor is saved, and the necessity of taking'the car to the shop completely obviated.

In view of the fact that railway rails dil'er in weight per section, the size of the rail necessarily is different, thereby causing the cars to stand higher or lower with respect to the ties. To compensate for this variation in height of the rails, there is provided a detachable foot 20 having a recess 2l in its upper end for the reception of the lower end of the leg of the jack, a cross pin 22 being engaged through the leg and foot, as shown. This foot elevates the jack to the proper height for a rail and car which pill not accommodate the jack without the oot.

What is claimed is:

A oar ack for facilitating the removal of car journal brasses comprising a head having yokes on the ends thereof, a plate for engagement on the arms of each yoke and clamping means for the plate, a leg pivotally connected to the lower side of the head, and a removable foot block for the lower end of the leg.

In testimony whereof, I aiiix my signature, in the presence of two witnesses.

ROBERT B. BRITTON.

Witnesses:

W. J. LnAvrr'r, JETTIE L. CRAVEN. 

